| Name | Title | Contact Details |
|---|
Sojitz Corporation is a sogo shosha based in Tokyo, Japan.
Production Enhancement Group, Inc., a Houston-based energy services company incorporated in Alberta, Canada, rades on the TSX under the symbol WIS.
TDI-Brooks International is a College Station, TX-based company in the Energy and Utilities sector.
Kelley-Williamson Company is a Rockford, IL-based company in the Energy & Utilities sector.